The common Malaysian name for the timber of Jackiopsis ornata (Rubiaceae). This name, which is used in Sabah and Sarawak, is also applicable in Indonesia and is now adopted as the ASEAN Standard Name. Vernacular names applied include sentulang (Peninsular Malaysia). This is a monospecific timber. The sapwood is not clearly differentiated from the heartwood, which is red to purple-red-brown.
Also known as Selumar (Indonesia).
The timber is hard and heavy with a density of 785-915 kg/m3 air dry.
It is fairly durable when exposed to the weather or in contact with the ground.
Texture is moderately fine and even, with straight grain.
The timber works easily.
The following uses for this timber have been recorded: fencing, house posts, carrying poles, paddles, rice pounders and other domestic implements.
Wong, T. M. 1982. A Dictionary of Malaysian Timbers. Revised by Lim, S. C. & Chung, R. C. K. Malayan Forest Records No. 30. Forest Research Institute Malaysia, Kuala Lumpur. 201 pp.